Method and apparatus for wrist arthroplasty
AssigneeBiomet Manufacturing, LLC
InventorsBrian K. Berelsman, Thomas J. Graham, Andrew K. Palmer, Thomas M. Vanasse, Nicholas J. Katrana, Nathan A. Winslow
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Abstract
A wrist prosthesis system to replace at least a portion of a bone of a wrist of a patient. The system includes a carpal implant to replace at least a portion of a carpal bone of a carpal complex of the patient. The carpal implant includes a base and an augment that replaces at least a portion of the carpal bone. The augment is removably coupled to the base.
Claims9
A wrist prosthesis system to replace at least a portion of a bone of a wrist of a patient, comprising:
- a radial implant with a bone replacement member configured to replace at least a portion of a radius of the patient, the radial implant also including a stem configured to extend into the radius of the patient;
- a carpal implant that is operably coupled to the radial implant, the carpal implant including a base having first and second intersecting planar portions, one of the planar portions defining an aperture configured to annularly surround a portion of the radial implant, and an augment configured to replace at least a portion of a carpal bone of a carpal complex of the patient, the augment being removably and directly coupled to the base and the radial implant;
- and
- wherein one of the base and the augment includes a projection and the other of the base and the augment includes a recess that receives the projection to removably couple the base and the augment.
A wrist prosthesis system to replace at least a portion of a bone of a wrist of a patient, comprising:
- a radial implant with a bone replacement member configured to replace at least a portion of a radius of the patient, the radial implant also including a stem configured to extend into the radius of the patient;
- a carpal implant that is operably coupled to the radial implant, the carpal implant including a base having first and second intersecting planar portions, one of the planar portions defining an aperture configured to annularly surround a portion of the radial implant, and an augment configured to replace at least a portion of a carpal bone of a carpal complex of the patient, the augment being removably and directly coupled to the base and the radial implant.
- a fastener that removably couples the base and the augment.
A wrist prosthesis system to replace at least a portion of a bone of a wrist of a patient, comprising:
- a radial implant with a bone replacement member configured to replace at least a portion of a radius of the patient, the radial implant also including a stem configured to extend into the radius of the patient;
- a carpal implant that is operably coupled to the radial implant, the carpal implant including a base having first and second intersecting planar portions, one of the planar portions defining an aperture configured to annularly surround a portion of the radial implant, and an augment configured to replace at least a portion of a carpal bone of a carpal complex of the patient, the augment being removably and directly coupled to the base and the radial implant.
- wherein the bone replacement member includes a proximal portion that is operably coupled to the stem and a distal portion that is removably coupled to the proximal portion, the proximal and distal portions cooperating to define a pocket encapsulated within the bone replacement member when the proximal and distal portions are removably coupled.
Dependencies are inferred from the claim text.